MultiTail lets you view one or multiple files like the original tail program. The difference is that it creates multiple windows on your console (with ncurses). Merging of 2 or more log files is possible. It can also use colors while displaying the log files (through regular expressions) for faster recognition of what is important. It can also filter lines (again with regular expressions). It has interactive menus for editing given regular expressions and deleting and adding windows. One can also have windows with the output of shell scripts and other software. When viewing the output of external software, MultiTail can mimic the functionality of tools like 'watch'.

The MirBSD Korn Shell (mksh) is an actively developed successor of pdksh (the Public Domain Korn Shell), aimed at producing a shell good for interactive use, but with the primary focus on scripting. It is intended to be portable to most *nix-like operating systems as long as they're not too obscure. mksh incorporates improvements from OpenBSD and Debian, as well as bugfixes and enhancements developed for the MirOS, FreeWRT, and MidnightBSD projects and Android. The emacs command line editing mode is UTF-8 capable, and Byte Order Marks are ignored in scripts. The shell supports large files, as well as all pdksh and some csh, AT&T ksh, zsh, and GNU bash features, is compatible with the Bourne shell and POSIX (within limits), has no limit on array sizes, and incorporates some other useful builtins and features. While being already fast and small (without losing functionality), flags to make it even smaller can be given at compile time. An interactive shell reads "~/.mkshrc" on startup.

The dyncall library project provides a clean and
portable C interface to dynamically issue foreign
function calls using small call kernels written in
assembly. Instead of providing code for every
bridged function call, which unnecessarily results
in code bloat, only a modest number of
instructions are used to invoke all calls.

LibU is a multiplatform C library that comes under
a BSD-style license. It includes many
interdependent modules for accomplishing several
tasks: memory allocation, networking and URI
parsing, string manipulation, debugging, and
logging in a very compact way, plus many other
miscellaneous tasks. It has a small footprint
(about 70KB for the default configuration), it is
modular, and it has a multiplatform nature, making
it an ideal candidate for embedded systems. KLone
is an example of such usage.